puncturevine |
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| Sapindales > Zygophyllaceae > Tribulus terrestris L.
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| Synonym(s): bullhead, caltrop, goathead, Mexican sandbur, puncture vine, Texas sandbur |
Puncturevine is an annual, low-spreading forb native to the Mediterranean. Leaves are opposite, hairy, 1-3 in. (2.5-7.6 cm) long, and divided into 8-18 oblong leaflets. Flowering occurs from midsummer to frost, when 5-petaled, yellow, 0.5 in. (1.27 cm) wide flowers develop singly in the axils of the leaves. Fruit are circular, spiny burs that split into 5 sections. Burs can cause injury to bicycle tires, bare feet, and even small truck tires. Plants invade roadsides, pastures, fields and other disturbed areas. Plants are toxic to sheep and other grazers. |
Identification, Biology, Control and Management Resources
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Selected Images from Invasive.org
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Plant(s);
Steve Dewey, Utah State University, Bugwood.org
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Plant(s);
Steve Dewey, Utah State University, Bugwood.org
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Foliage;
Charles T. Bryson, USDA Agricultural Research Service, Bugwood.org
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Feature(s); flower and fruit
Forest & Kim Starr, U.S. Geological Survey, Bugwood.org
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Flower(s);
Richard Old, XID Services, Inc., Bugwood.org
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Flower(s); flower and leaves
Forest & Kim Starr, U.S. Geological Survey, Bugwood.org
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Plant(s); in flower
Steve Dewey, Utah State University, Bugwood.org
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Plant(s); in flower
Richard Old, XID Services, Inc., Bugwood.org
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Fruit(s); fruit
Forest & Kim Starr, U.S. Geological Survey, Bugwood.org
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Flower(s);
Steve Dewey, Utah State University, Bugwood.org
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Fruit(s);
Richard Old, XID Services, Inc., Bugwood.org
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Fruit(s); Thorns
Utah State University Archive, Utah State University, Bugwood.org
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Feature(s); Burs stuck into tractor tire
Utah State University Archive, Utah State University, Bugwood.org
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Fruit(s);
Richard Old, XID Services, Inc., Bugwood.org
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Plant(s);
Richard Old, XID Services, Inc., Bugwood.org
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Plant(s);
Richard Old, XID Services, Inc., Bugwood.org
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Fruit(s);
Steve Hurst, USDA NRCS PLANTS Database, Bugwood.org
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Diagram or Graphic; Britton, N.L., and A. Brown. 1913. Illustrated flora of the northern states and Canada. Vol. 2: 442.
USDA PLANTS Database, USDA NRCS PLANTS Database, Bugwood.org
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Invasive Reference(s):
Check Invasive.org for most current lists.
- Arizona - Noxious Weed Law
- California - Noxious Weed Law
- Colorado - Noxious Weed Law
- Iowa - Noxious Weed Law
- Michigan - Noxious Weed Law
- Nevada - Noxious Weed Law
- North Carolina - Noxious Weed Law
- Oregon - Noxious Weed Law
- Tennessee - EPPC List
- Texas - Invasive Plant List
- Washington - Noxious Weed Law
- Invasive Plants: Western North America
- Invasive Plants: Guide to Identification and the Impacts and Control of Common North American Species
External Links
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